Ryobi 4000mAh 40V Lithium Battery OP4040 Replacement for Ryobi 40 Volt Power Tool Battery

Replace Ryobi 40-Volt lithium-ion battery:
OP4050A, OP4015, OP4026, OP40201, OP40261, OP4030, OP40301, OP4040, OP40401, OP4050, OP40501, OP40601

Works with Ryobi 40-Volt lithium-ion tools: (NOT for Model: RY40503)
RY40180, RY40200, RY40201A, RY40202, RY40204, RY40400, RY40402A, RY40403, RY40411, RY40502A, RY40511, RY40601A RY40LM30
RY40190, RY40430, RY40620, RY40460, RY40250 RY40770, RY40850, RY40610A, RY40210B, RY40240, RY40440

Feature
1.Premium Lithium battery cells,charging or discharging as needed without loss of capacity, Integrated microchip prevents overcharging & lengthens battery life
2.Perfectly Compatible With Ryobi 40-Volt Tools OP4026A OP40261
3.WORKS WITH RYOBI OUTDOOR PRODUCTS: Over 15 tools in the Ryobi 40V line are compatible with these batteries, from string trimmers to lawnmowers